The IBM 3270 is a family of block oriented [1] display and printer computer terminals introduced by IBM in 1971 [2] and normally used to communicate with IBM mainframes. The 3270 was the successor to the IBM 2260 display terminal. [ 3 ]

The display management protocol used to facilitate this communication within an SNA environment was called the 3270 data stream. At the end user's location in an SNA network was a device referred to as a 3270 terminal. A 3270 terminal was a non-programmable (sometimes called "dumb") workstation.

The IBM 3270 PC (IBM System Unit 5271), is a personal computer developed by IBM and released in October 1983. Although its hardware is mostly identical to the IBM PC XT, the 3270 contains additional components that, in combination with software, can emulate the behavior of an IBM 3270 terminal.

The 3270 data stream operations are designed primarily for transmitting data between an application program and a 3270 display with keyboard so end users can interact with mainframe-based applications. The 3270 data stream is also designed for …

The 3270 is a family of display and printer terminals, with supporting control units, that share common characteristics and use the same encoded data format to communicate between terminal and host processor.

IBM 3270 Terminal: The 3270 Information Display System is a family of display and printer terminals. 3270 terminals were being used to connect to the mainframe via IBM controllers.

Mar 27, 2021 · The original IBM 3270 terminal, mid 1970s. Although it bears a superficial resemblence to regular ASCII "start/stop" terminals, the similarity ends just below the surface. The 3270 is much more tightly coupled to the mainframe than a regular terminal would be.

Jul 18, 2022 · The original IBM 3270 mainframe terminal was released in 1971 to replace its predecessor, the IBM 2260. Consisting of a screen and a keyboard, the 3270 was a non-programmable terminal and was meant to be used in conjunction with a centralized mainframe.

The IBM 3270 is a family of block oriented display and printer computer terminals introduced by IBM in 1971 and normally used to communicate with IBM mainframes. The 3270 was the successor to the IBM 2260 display terminal. [2]

The 3270 data stream is a buffer-oriented data stream. The print data is formatted as if it were going to be displayed on a screen. The host system sends commands to format the presentation space.